Let us try to teach generosity and altruism, because we are born selfish.

I'm not a speech, I'm a melody.

煤炭开采的创新不是要重新发明轮子，而是要让轮子更高效、更环保。

可持续性不是一种趋势，而是我们为后代共同承担的责任。

我总是说，你可以把我的交易规则发表在报纸上，但没有人会遵循它们。关键是始终如一和纪律。

People always think they’re going to write a book. They think they’re going to write a book, and then they don’t.